Improvement in apparatus for setting up ships  rigging



' T; FQHALL.

APPARATUS FOR SETTING UP SHIPS RIGGING.. No.18Z,818

Patented Oct. 3. 1875.

Wimesses Attorneys.

-PETERS, PHOTO-WHOGRAPKER, WASHINGTDN D C.

UNITED STATES PATENT OFFICE.

' THOMAS F. HALL, OF OMAHA, NEBRASKA.

IMPROVEMENT IN APPARATUS FOR SETTING UP SHIPS RIGGING.

Specification forming part of Letters Patent No. 182,818, dated October3, 1876; application filed August 21, 1876. I

To all whom it may concern:

Be it known that I, THOMAS F. HALL, of Omaha, in the county of Douglasand State of Nebraska, have invented a new and useful Improvement inApparatus for Setting up Ships Rigging, of which the following is aspecification.

Figure 1 is a side view of my improved apparatus. Fig. 2 is an edge viewof the same.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved apparatus forsetting up ships rigging and for other uses where great power isrequired. v

The invention consists in the employment of the double chain-pulley ofdifferent diameters, in connection with the guide-pulleys, the frame,and the endless chain; in the employment of the guide-rods and theirpulleys, in connection with an endless chain and differential pulley;and in the combination of the differential pulley, the guide-pulleys,the frame and guide-rods and their pulleys, and the endless chain witheach other, as hereinafter fully described.

A are two guide-rods, the upper ends of which are connected by bars B,to and between which is pivoted a pulley, O. The lower ends of the rodsA are connected by bars D, to and between which is pivoted a pulley, E,the pulleys G and E being thus always kept at the same distance apart. Fis a double chainpulley, the two parts of which are of differentdiameters. The double pulley F is arranged between the cross-bars of theframe G, and journaled in the same. At the ends of said frame arearranged the rods A, which are capable of sliding up and down throughthe frame. To the middle parts of the bars of the frame G are connectedbars H, which project at right angles to said frame. Between the bars Harepivoted pulleysl at such a distance from the groove of the part ofsaid pulley of greatest diameter, and the other part passing along thegroove of the part of the pulley of small est diameter. The parts of thechain J pass or cross each other between the pulleys F and I, pass down.upon the opposite sides of said pulleys I, and around the pulley E. Thepower is applied to the shaft of the double pulley F. The cross-bars orframe B is connected with the rigging, and the end of the frame H isconnected with the side of the vessel. As the pulley F is turned in onedirection it moves slowly up the chain J toward the pulley 0, drawingthe frames G H toward the bars or frame B slowly, but with immensepower, the pulleys G E keeping the chain J always taut, and the pulleysI holding the said chain in place upon the pulley F.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- 1. The combination of the double chainpulley F, ofdifferent diameters, with the pulleys I, frame G, and endless chain J,substantially as herein shown and described.

2. The combination of the guide-rods A and pulleys O E with the endlesschain J and differential pulley F, substantially as herein shown anddescribed. A

3. The combination of the differential pulley I the pulleys I, the frameG H, the guiderods A, the pulleys G E, and the endless chain J with eachother, substantially as herein shown and describe i THOMAS F. HALL.Witnesses:

OHAs. HALL,

JAMEs S. FRANCE.

